Paul McCartney Pops The Big Question To Girlfriend Nancy Shevell

Dealing with a rocky marriage and eventually messy divorce with second wife Heather Mills, former Beatles legend [lastfm link_type=”artist_info”]Paul McCartney[/lastfm] is taking the marriage plunge once again to longtime girlfriend Nancy Shevell, according to reports. [photogallerylink id=41487 align=left]

A source close to Shevell, 51, confirmed that McCartney, 68, popped the question and are now engaged after four years of dating, making it McCartney’s third marriage.

The source told PEOPLE that “Nancy and Paul are getting married. Ring and all — very exciting.” The couple began dating four years ago during McCartney’s very public and messy divorce from Heather Mills, which cost the music legend $48.6 million in divorce settlements.

The source adds that the pair are a perfect match because “They have the right chemistry. They’re both cool, chilled out and optimistic.” This will be McCartney’s third marriage after losing his first wife Linda to cancer in 1998 and splitting with Mills four years ago.